How to match euro € sign in javascript regexp with octal, hexadecimal or unicodal metacharacter?

Question

I need to create hexadecimal and octal metacharacters in regexp. I found on the Internet a link that the octal code for € 200and hexadecimal 80, but when I try to match € with a regular expression \200and \x80it does not match the € sign. Only the unicode metacharacter \u20ACworks fine. Do I have the wrong codes or is it impossible to match the euro to the oct and hex metacharacters? I had no such problems with other characters before.

var a = "200€"

console.log(a.search(/\200/g));     //-1
console.log(a.search(/\x80/g));     //-1
console.log(a.search(/\u20AC/g));   //3

Run codeHide result

Answer 1

, £, £ 00A3 A3, javascript regexp as \u00A3 { } \xA3 { }. A3 , , 243, , \243 { } £. € , unicode 20AC, , \u20AC { }, { }, 00. 20AC 20254, , { }.

, , , \xdd regexp metacharacter, , , \ddd. , € U+20AC, ❤ U+2764, ☯ U+262F, ❄ U+2744, \udddd javascript.

Answer 2

- U + 20AC, U + 0080. 8- , 0x80 Euro, Windows-1252, Unicode. euro 8- escape- JavaScript.

Answer 3

Try this clean javascript hack (lalz):

var txt = 'This will cost 3€';
console.log(encodeURI(txt).indexOf('%E2%82%AC'));

Answer 4

It seems like it could be some kind of mistake.

console.log("Euro symbol: \x80");
console.log("Pound symbol: \xA3");

Run codeHide result